When the ventricles contract, blood flows from the right ventricle to the left atrium right atrium aorta lungs

Aorta

Explanation: As right ventricle contracts, it sends the oxygenated blood to the aorta, the main artery of the body. Then, through the aorta, the blood is send to all the tissues of the body.

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.